EP0833372A3 - Starting flag structure for tubular low pressure discharge lamps - Google Patents

Starting flag structure for tubular low pressure discharge lamps Download PDF

Info

Publication number
EP0833372A3
EP0833372A3 EP97115381A EP97115381A EP0833372A3 EP 0833372 A3 EP0833372 A3 EP 0833372A3 EP 97115381 A EP97115381 A EP 97115381A EP 97115381 A EP97115381 A EP 97115381A EP 0833372 A3 EP0833372 A3 EP 0833372A3
Authority
EP
European Patent Office
Prior art keywords
lamp envelope
starting flag
low pressure
pressure discharge
discharge lamps
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97115381A
Other languages
German (de)
French (fr)
Other versions
EP0833372A2 (en
EP0833372B1 (en
Inventor
John W. Shaffer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osram Sylvania Inc
Original Assignee
Osram Sylvania Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Osram Sylvania Inc filed Critical Osram Sylvania Inc
Publication of EP0833372A2 publication Critical patent/EP0833372A2/en
Publication of EP0833372A3 publication Critical patent/EP0833372A3/en
Application granted granted Critical
Publication of EP0833372B1 publication Critical patent/EP0833372B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
    • H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
    • H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
    • H01J65/048—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field the field being produced by using an excitation coil

Abstract

An electric lamp includes a tubular lamp envelope enclosing mercury vapor and a buffer gas, and a flag assembly located within the lamp envelope. The lamp envelope has a pair of dimples on an inside surface thereof. The flag assembly includes a support wire having opposite ends secured to the dimples and a starting flag attached to the support wire. The starting flag includes a mercury-absorbing material. The lamp envelope may be a closed loop electrodeless lamp envelope or a conventional electroded fluorescent lamp envelope.
EP97115381A 1996-09-26 1997-09-05 Starting flag structure for tubular low pressure discharge lamps Expired - Lifetime EP0833372B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/721,521 US5717290A (en) 1996-09-26 1996-09-26 Starting flag structure for tubular low pressure discharge lamps
US721521 1996-09-26

Publications (3)

Publication Number Publication Date
EP0833372A2 EP0833372A2 (en) 1998-04-01
EP0833372A3 true EP0833372A3 (en) 1998-05-27
EP0833372B1 EP0833372B1 (en) 2002-03-06

Family

ID=24898311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97115381A Expired - Lifetime EP0833372B1 (en) 1996-09-26 1997-09-05 Starting flag structure for tubular low pressure discharge lamps

Country Status (5)

Country Link
US (1) US5717290A (en)
EP (1) EP0833372B1 (en)
JP (1) JP4210356B2 (en)
CA (1) CA2214660C (en)
DE (1) DE69710837T2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6552982B1 (en) 1999-03-08 2003-04-22 Matsushita Electric Industrial Co., Ltd. Information recording medium, information recording and reproduction method, and information recording and reproduction apparatus
DE19946274C2 (en) * 1999-09-27 2003-04-17 Heraeus Noblelight Gmbh Electrodeless discharge lamp and its use
JP2003086144A (en) * 2001-09-14 2003-03-20 Matsushita Electric Works Ltd Electrodeless discharge lamp device
DE10228883B3 (en) * 2002-06-27 2004-02-26 Schott Glas Holding clamp for fixing the getters in containers of any cross-section in closed vacuum systems and container for use in closed vacuum systems, especially collector pipe
US7778712B1 (en) * 2003-01-13 2010-08-17 Success by Association, Inc. Bulb apparatus
EP1949415A2 (en) * 2005-09-30 2008-07-30 Energetiq Technology Inc. Inductively-driven plasma light source
JP4807228B2 (en) * 2006-11-06 2011-11-02 パナソニック電工株式会社 Electrodeless discharge lamp, electrodeless discharge lamp device using the same, and lighting fixture
JP4956224B2 (en) * 2007-02-23 2012-06-20 パナソニック株式会社 Manufacturing method of electrodeless discharge lamp, electrodeless discharge lamp manufactured by the manufacturing method, and lighting fixture using the electrodeless discharge lamp
JP4844444B2 (en) * 2007-03-27 2011-12-28 パナソニック電工株式会社 Electrodeless discharge lamp and lighting apparatus using the same
US8198815B2 (en) * 2009-09-29 2012-06-12 Osram Sylvania Inc. Amalgam support in an inductively coupled discharge lamp
US8471455B2 (en) * 2010-01-27 2013-06-25 General Electric Company Positioning of auxiliary amalgam
US20110298356A1 (en) * 2010-06-08 2011-12-08 General Electric Company Positioning of auxiliary amalgam
US8487544B2 (en) 2010-09-29 2013-07-16 Osram Sylvania Inc. Power splitter circuit for electrodeless lamp
US8633642B2 (en) * 2011-11-16 2014-01-21 General Electric Company Lamp part fixing by shape memory alloy in the discharge tube of fluorescent lamps

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3504215A (en) * 1967-11-30 1970-03-31 Westinghouse Electric Corp Planar fluorescent lamp with integral amalgam type mercury-vapor pressure control component
US4480213A (en) * 1982-07-26 1984-10-30 Gte Laboratories Incorporated Compact mercury-free fluorescent lamp
EP0646942A1 (en) * 1993-10-04 1995-04-05 General Electric Company Accurate placement and retention of an amalgam in an electrodeless fluorescent lamp
EP0646941A1 (en) * 1993-10-04 1995-04-05 General Electric Company Electrodeless fluorescent lamp and method for manufacturing
EP0688039A2 (en) * 1994-06-13 1995-12-20 General Electric Company Fluorescent lamp and manufacture thereof
DE19528686A1 (en) * 1995-08-03 1997-02-06 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Halogen light bulb

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3227907A (en) * 1962-12-31 1966-01-04 Sylvania Electric Prod Electric discharge lamp with integral pressure regulator
US3336502A (en) * 1963-12-31 1967-08-15 Sylvania Electric Prod Automatic heater control system for amalgam pressure control of fluorescent lamps
FR1583078A (en) * 1968-07-15 1969-10-17
JPS6230282Y2 (en) * 1978-01-26 1987-08-04
US4528209A (en) * 1978-10-25 1985-07-09 General Electric Company Use of amalgams in solenoidal electric field lamps
US4262231A (en) * 1978-10-25 1981-04-14 General Electric Company Helical wire coil in solenoidal lamp tip-off region wetted by alloy forming an amalgam with mercury
NL8301032A (en) * 1983-03-23 1984-10-16 Philips Nv ELECTRODELESS DISCHARGE LAMP.
NL8303044A (en) * 1983-09-01 1985-04-01 Philips Nv ELECTLESS METAL VAPOR DISCHARGE LAMP.
US4647821A (en) * 1984-09-04 1987-03-03 Gte Laboratories Incorporated Compact mercury-free fluorescent lamp
JPH01197959A (en) * 1988-02-02 1989-08-09 Toshiba Corp Amalgam for low-pressure mercury vapor discharge lamp and low-pressure mercury vapor discharge lamp using this amalgam
JPH083997B2 (en) * 1988-12-12 1996-01-17 東芝ライテック株式会社 Low pressure mercury vapor discharge lamp
US5204584A (en) * 1990-09-28 1993-04-20 Toshiba Lighting & Technology Corporation Low pressure mercury vapor discharge lamp
US5373216A (en) * 1992-12-21 1994-12-13 General Electric Company Electrodeless arc tube with stabilized condensate location
US5412288A (en) * 1993-12-15 1995-05-02 General Electric Company Amalgam support in an electrodeless fluorescent lamp
US5500567A (en) * 1994-02-10 1996-03-19 General Electric Company Apparatus for securing an amalgam at the apex of an electrodeless fluorescent lamp

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3504215A (en) * 1967-11-30 1970-03-31 Westinghouse Electric Corp Planar fluorescent lamp with integral amalgam type mercury-vapor pressure control component
US4480213A (en) * 1982-07-26 1984-10-30 Gte Laboratories Incorporated Compact mercury-free fluorescent lamp
EP0646942A1 (en) * 1993-10-04 1995-04-05 General Electric Company Accurate placement and retention of an amalgam in an electrodeless fluorescent lamp
EP0646941A1 (en) * 1993-10-04 1995-04-05 General Electric Company Electrodeless fluorescent lamp and method for manufacturing
EP0688039A2 (en) * 1994-06-13 1995-12-20 General Electric Company Fluorescent lamp and manufacture thereof
DE19528686A1 (en) * 1995-08-03 1997-02-06 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Halogen light bulb

Also Published As

Publication number Publication date
CA2214660A1 (en) 1998-03-26
US5717290A (en) 1998-02-10
CA2214660C (en) 2005-05-17
JP4210356B2 (en) 2009-01-14
EP0833372A2 (en) 1998-04-01
DE69710837T2 (en) 2002-07-18
EP0833372B1 (en) 2002-03-06
DE69710837D1 (en) 2002-04-11
JPH10116591A (en) 1998-05-06

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